Process for manufacture of women&#39;s elastic free size winter shirts

ABSTRACT

A process for manufacturing women&#39;s elastic winter shirts having an omasum inner-wall-like textile structure to render desired elasticity to a shirt. The process of this invention to make the raw material to have the omasum-like textile structure consists of including but not limited to weaving, hand tying-fabrics, heating, drying, cutting and sewing. The material suitable for the process of this invention is composed of wool and polyester.  
     The shirt of this invention is excellent in resilient elasticity, shape retainability and shape stability. The shirts of this invention are free size, one size fitting all. The shirt is lighter than average women&#39;s winter shirts. Thermal insulation is adequate. Packing size is much smaller than comparable women&#39;s winter shirts.  
     The shirts of this invention emphasize the bodyline of women&#39;s breast and decorate the line with embossing to render a more sensual appearance.

[0001] The present invention relates to a process for manufacturingwomen's elastic winter shirts having excellent resilient elasticity,original shape retainability and shape stability maintaining the omasuminner wall-like textile structure.

BACKGROUND OF THE INVENTION

[0002] 1. Field of Invention

[0003] The present invention relates to a process for the manufacture oflighter, smaller and more sensual elastic women's free size wintershirts. The omasum-like structure made by the procedure of thisinvention facilitates excellent resilient elasticity, origina shaperetainability and shape stability to the textile and make it possible toproduce women's shirts which have intended characteristics.

[0004] 2. Description of the Prior Art

[0005] Since they have high performance, synthetic fibers such as nylonand polyester fibers have been widely used for clothing and inindustrial areas. Fibrous sheets composed of nylons and polyesters arefrequently used as three-dimensional products such as interlining clothsfor clothes, brassieres, and pads for breasts and shoulders. Recently,they have been applied to a shape stabilizer of the shirts made ofblended yarns containing polyester and cotton.

[0006] Conventional polyester fiber itself is poor in resiliency. Toenhance reinsiliency, the fiber should be conjugated with highlyresilient animal hair such as horse hair or even human hair for anapplication to interlining cloths. Sophisticated sewing technique isrequired to make clothing from the conjugated fibers.

[0007] U.S. Pat. No. 6,248,418 to Taguchi, et al. teaches the methods tomanufacture materials having good resiliency, dimensional stability andthree dimensional shape retainability from polyester itself by highspeed molten polymer taking-up method followed by heat treatments.Taguchi, et al. teach to add materials such as wool to the polyesterfiber by variant processing methods.

[0008] Taguchi, et al. teach to make shirts by weaving or knitting yarnsmade by spinning only staple fiber or yarns made by mix-spinning of thestaple fiber and other fibers, sewing it to form a shirt, and heattreating it at a temperature not lower than 120° C. Taguchi, et al.teach an example that a shirt made by the procedure has threedimensional shape retainability and suited to the shape of the body.None is suggested or illustrated about the process of manufacturingflexible shirts of free size, retaining the omasum-like structure.

SUMMARY OF THE INVENTION

[0009] It is the object of this invention to provide a new method formanufacture of women's shirts which have an omasum inner wall-likestructure to give desired resilient elasticity and original shaperetainability enough to make a free size, one size fitting all, shirts.

[0010]FIG. 1 is a block flow diagram representing the process of thisinvention. The tying-fabrics step in FIG. 1 is to form the omasuminner-wall-like textile structure. Then the textile is exposed toincluding but not limited to heat and steam followed by cooling step,cutting step, and sewing step to make a shirt. The omasum structurereturns to its original shape and original size of baby suit even afterwoman of normal size wears 100 times. The shirt was made as a free size,one size fitting all.

[0011] The shirts of this invention are much lighter than averagewomen's winter shirts. Thermal insulation is adequate. Packing size ismuch smaller than a comparable women's winter wear.

[0012] The materials for these shirts are composed of wool and polyesterwhich are fabricated by hand followed by heating and moisture treatmentsto make an omasum-like structure.

[0013] The shirts of this invention emphasize the line of women's breastand decorate the bodyline with embossing, which is possible due to theexcellent resilient elasticity and shape retainability rendered to thematerial by fabricating the material to have the omasum-like structureas illustrated in FIG. 2 and FIG. 3.

[0014] The weight of a shirt of this invention is less than 200 g/shirtin dry state, which is much lighter than a typical women's knit sweaterand winter shirt. They usually weigh over 250 g/shirt.

[0015] The structural characteristics of the shirt of this inventionenabled to manufacture a women's winter shirt of free size which is aswarm as typical women's winter shirt but the packing volume and weightare smaller than those of a normal women's winter shirt.

BRIEF DESCRTIPTION OF THE DRAWINGS

[0016]FIG. 1 is the block flow diagram of the process of this invention.

[0017]FIG. 2 is the enlarged front view of the omasum-like structure atthe outer-surface of the shirt at a normal state.

[0018]FIG. 3 is the side view of the omasum-like structure at a normalstate.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] Shown in FIG. 1 of block flow diagram, the procedure of thisinvention consists of including but not limited to 6 steps of weaving,tying-fabrics, heating, cooling, cutting and sewing. Un-tying is excutedat the cutting step. The omasum inner-wall-like textile structure ismade and fixed at the tie-fabrics step and heat treatment step,respectively.

[0020]FIG. 2 is the enlarged top view of the omasum-like structure whenthe shirt is shrunk to a normal state. At this state the size of theshirt is almost that of baby's shirts for ages less than 3. Thereforethe packing size is much smaller than conventional women's wintershirts.

[0021]FIG. 3 is the side view of the omasum-like structure of FIG. 2.Average peak density of the omasum-like structure in FIG. 3 is 260peaks/100 cm², horizontal 20 peaks/10 cm by vertical 13 peaks/10 cm. Thepeak's height of one omasum unit being 12 mm.

[0022] The degree of stretching of this shirt depends on the part ofwomen's upper body where the shirt contacts. When a woman of breast size34 inches wears the shirt the peak density of the omasum-like structurein FIG. 3 reduces to {fraction (1/4)} of the original density aroud thebreast. Then the textile surrounding breast becomes semi-transparentwhile the slender waist part remains opaque. Combination of this opacityand semi-transparency along the women's bodyline renders a more sensuallook.

[0023] When a women wears the shirt of this invention, the air iscaptured in the extended unit of the omasum-like structure surrounded bythe shirts material and wearer's skin and acts as insulating layerrendering adequate thermal insulation.

What is claimed is:
 1. A process for manufacture of a women's elasticfree size winter shirts retaining an omasum inner-wall-like structureconsisting weaving, followed by tie-fabrics, followed by heat treatmentat a heating rate of 25° C./second, at 1.5 atmosphere, using steam,followed by cooling, followed by cutting, and followed by sewing.
 2. Theheating step in claim 1 includes but not limited to use of air.
 3. Theheating rate in claim 1 is from 1 to 50° C./second.
 4. The heating ratein claim 1 is from 0.1 to 100° C./second.
 5. The heating in claim 1 isaccomplished at a pressure range of 1 atmosphere to 30 atmospheres. 6.The heating in claim 1 is accomplished at a pressure in the range of 1atmosphere to 100 atmospheres.